IPhone change calendar colors

$ cd /var/mobile/Library/Calendar
$ sqlite3 Calendar.sqlitedb

sqlite> select title,color_r,color_g,color_b from Calendar; — List calendars and current colors
Default|-1|-1|-1
Michael Ansel|181|0|13
School-Important|47|141|0
School-Studying|15|77|140
School-Class|229|98|0

sqlite> update Calendar set color_r=181, color_g=0, color_b=13 where title = ‘School-Important’; — Red
sqlite> update Calendar set color_r=229, color_g=98, color_b=0 where title = ‘School-Studying’; — Orange
sqlite> update Calendar set color_r=103, color_g=10, color_b=108 where title = ‘School-Class’; — Purple
sqlite> update Calendar set color_r=15, color_g=77, color_b=140 where title = ‘Michael Ansel’; — Blue

sqlite> select title,color_r,color_g,color_b from Calendar; — List calendars and current colors
Default|-1|-1|-1
Michael Ansel|15|77|140
School-Important|181|0|13
School-Studying|229|98|0
School-Class|103|10|108

sqlite> .quit

$ exit

###################

RGB Values for the Standard Colors

Red = (181,0,13)
Orange = (229,98,0)
Green = (47,141,0)
Blue = (15,77,140)
Purple = (103,10,108)